Multiple roles through AD groups

I’m using wordpress as extranet solution, and I’m trying to create slightly different content for different usergroups. Also one user may be member of multiple groups wich is currently giving my headache. I’ve created those roles with Role Scoper and I’ve added them into Active Directory. Problem is that when user logs in, he will only gain one role through AD. Is it possible to assign multiple roles for user with your plugin as it is possible to do with Role Scoper, and your plugin can assign at least one role.

I need this feature as well. This is a killer criteria and I am already digging into the code to see where the “flaw” is. I know that WP originally foresees only 1 role per user (…), BUT the core code does allow multiple users (I believe as of multi sites feature) and it should not cost more than 3 lines to add this.

Our project is not kicking off, yet, but I can dump a draft of mentioned file, which I think did allow me to have multiple roles. Eventually, I might take over both plugins and make it solid, but it is complex, when you have no Active Directory at home ,-)
I hope, my W7 Pro can act as a domain controller, somehow.